My PC has been wonky every since a power surge in the middle of one of Windows 10’s updates. It has internet connection, but whenever I try to use windows store or any Microsoft product (including Cortana), it says it cannot connect to the internet.
So I downloaded a repair tool last night and figured it couldn’t hurt.
The repair tool got mostly to the end, then rolled back.
My PC, if you right click on the MY PC icon and go to properties, says that it has Windows 10 installed.
If I go to Control Panel and go to system restore, it says brings up the Windows 7 restore process.
It will not let me re-run the repair tool, and I only had system restore backing up my data files, so I can’t run restore to restore the system files.
So I have a hybrid Windows 10/Windows 7 PC at home. Still can’t get Microsoft Store, Edge or Cortana to work, but I really don’t need store, never really used Cortana, and I use Chrome as my browser anyway.
Some day I’ll figure out how I managed to mess up the registry so bad.
Thank goodness for my new lap top that is twice as fast as my old desktop, so I can keep messing with the desktop without losing anything. 
Re-installing an operating system is surprisingly simple, and may be in order in your case.
Good luck!
Before anything else happens - buy a brand new surge suppressor and throw your old one away.
You didn’t say where you got the repair tool from? I mostly don’t bother with repair tools, personally. Very dodgy success rate, in my experience.
At any rate - if you have the Windows 7 media, I’d reinstall that, completely, reformating your hard drive. Make sure you have all the disks and numbers you’ll need before you start.
Get your windows 7 installation in a complete and solid state, and then try to update to 10. Maybe wait until after the thunderstorm passes, this time.
Looks like, from what I’ve read, your best bet would be to wipe the drive and reinstall Windows. Though make sure to back up anything you might need, like files, documents, photos and videos etc!
Also, what version of Windows did the computer come with? If it came with Windows 7, and there are no other Windows 7 computers in the household, I’d recommend leaving it on 7. I’ve found out that some legacy software, that worked fine on 7, didn’t work on 10.
Oh, and the graphics requirement is higher on W10 than it is on W7 - needless to say, my most modern computer, that was preinstalled with 10, is now dual boot 7 and 10, with the main partition being W7.
Thanks for all the advice 
I just thought it was funny that I could so totally confuse my poor computer that it developed a split personality.